🤖 Instagram MCP AI agent – read, reply & manage comments with GPT-4o

🤖 Instagram AI Agent with MCP Server – Built for Smart Engagement and Automation

Hi! I’m Amanda 🥰 I build intelligent automations with n8n and Make. This powerful workflow was designed to help teams automatically handle Instagram interactions with AI. Using Meta Graph API, LangChain, MCP Server, and GPT-4o, it allows your AI agent to search for posts, read captions, fetch comments, and even reply or message followers, all through structured tools.

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🔧 What the workflow does

- Searches for recent media using Instagram ID and access token - Reads and extracts captions or media URLs - Fetches comments and specific replies from each post - Replies to comments automatically with GPT-generated responses - Sends direct messages to followers who commented - Maps user input and session to keep memory context via LangChain - Communicates via Server-Sent Events (SSE) using your MCP Server URL

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🧰 Nodes & Tech Used

- LangChain Agent + Chat Model with GPT-4o - Memory Buffer for session memory - toolHttpRequest to search media, comments, and send replies - MCP Trigger and MCP Tool (custom SSE connection) - Set node for input and variable assignment - Webhook and JSON for Instagram API structure